MIOCENE MOLLUSCA AND CRUSTACEA. 101 
acter mentioned in the description are much less marked on the smaller speci- 
men, and consist merely of very rugose lines of growth, scarcely breaking 
up the surface into the squares shown on Mr. Conrad’s figures. On the 
exfoliated specimen, however, this feature is very distinct. 
Formation and locality: In the micaceous Miocene marls at Jericho, 
ee 
N. J. From the collections of the National Museum. 
Family BUCCINID. 
Genus BUSYCON Bolten. 
BUSYCON CARICA. 
Pl. xvii, fig. 1. 
Murex carica Linn.: Gmelin; Martini, Knorr, ete. 
Pyrula carica Brug.: Eneyel. Method; Lamarck, Adams, Gould, and others, as a recent 
shell. 
Pyrula carica? Tuomey and Holmes: Plioc. Foss. 8. Car., p. 145, Pl. xx1x, fig. 1. 
Fulgur carica Conrad: Proc. Acad. Nat. Sci. Phila., vol. 7, p. 319. 
Busycon carica Conrad: Proc. Acad. Nat. Sci. Phila., 1862, p. 560; Meek, Check List 
Miocene Foss., p. 21. 
Shell large, pyriform, with a low conical spire, the volutions in which 
are margined on the periphery by a row of distant, somewhat flattened, 
tubercular spines, and are coiled upon each other so as to leave scarcely any 
of the surface below the spines exposed; upper surface of the volutions 
scarcely, or barely concave, between the suture and spines; apical angle 
variable, but always nearly 90 degrees. Aperture large; anterior canal broad 
and open; columella thick and heavy, strongly bent near the middle of the 
length, and together with the inner lip of the shell broadly ceated with a 
thin, polished enamel. Surface of the shell marked by transverse lines of 
growth, with often stronger ridges leading from the tubercles of the spire; 
also by faint or obsolete spiral lines. 
A single large individual of this species, somewhat imperfect, has been 
sent me, which measures nearly 9 inches in length. The tubercles are not 
as strong as in many specimens of the living shell found along the coast, 
although the shells seldom attain such dimensions. In all other respects I 
can find no difference between it and the living shells. The species would 
